Extended Falicov-Kimball model at weak onsite and intersite Coulomb interactions

Autor: K.J. Kapcia, J. Krawczyk, R. Lemański

Publikováno v: Condensed Matter Physics, Vol 23, Iss 4, p 43706 (2021)

We analyze in detail a behavior of the order parameter in the half-filled extended Falicov-Kimball model for small Coulomb interactions (both onsite U and intersite V). The parameter is defined as the difference of localized electron concentrations i

Externí odkaz: https://doaj.org/article/20603476bb4c4d429232c797cbb23f48

The frustration-free fully packed loop model

Autor: Zhao Zhang, Henrik Schou Røising

Publikováno v: Zhang, Z & Roising, H S 2023, ' The frustration-free fully packed loop model ', Journal of Physics A: Mathematical and Theoretical, vol. 56, no. 19, 194001 . https://doi.org/10.1088/1751-8121/acc76f

We consider a quantum fully packed loop model on the square lattice with a frustration-free projector Hamiltonian and ring-exchange interactions acting on plaquettes. A boundary Hamiltonian is added to favour domain-wall boundary conditions and link

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::375aca23ee4ec58f017c596f1e52f509

Extended Falicov-Kimball model at weak onsite and intersite Coulomb interactions

Autor: Konrad Jerzy Kapcia, Romuald Lemański, J. Krawczyk

Publikováno v: Condensed Matter Physics, Vol 23, Iss 4, p 43706 (2021)

We analyze in detail a behavior of the order parameter in the half-filled extended Falicov-Kimball model for small Coulomb interactions (both onsite $U$ and intersite $V$). The parameter is defined as the difference of localized electron concentratio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e02f7f0521f74fd7bd67768f957f2915
http://arxiv.org/abs/2101.06084

Construction of exact constants of motion and effective models for many-body localized systems

Autor: Marcel Goihl, Jens Eisert, Christian Krumnow, Marek Gluza

Publikováno v: Physical Review B. 97

One of the defining features of many-body localization is the presence of extensively many quasi-local conserved quantities. These constants of motion constitute a corner-stone to an intuitive understanding of much of the phenomenology of many-body l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd9e26b6cd80a9e8a086e2e45d3740f3
https://doi.org/10.1103/physrevb.97.134202

Thermodynamics of Fluid Polyamorphism

Autor: Mikhail A. Anisimov, Frédéric Caupin, Lauren E. Amrhein, Amanda Rosenbaum, Richard J. Sadus, Michal Duška

Publikováno v: Physical Review X, Vol 8, Iss 1, p 011004 (2018)
Physical Review X
Physical Review X, American Physical Society, 2018, 8 (1), pp.011004. ⟨10.1103/PhysRevX.8.011004⟩

"Fluid polyamorphism" is the existence of different condensed amorphous states in a single-component fluid. It is either found or predicted, usually at extreme conditions, for a broad group of very different substances, including helium, carbon, sili

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81c3a47248509931b118d025ebe65be9
https://doaj.org/article/560580f895ce43dbacafeb1a3fd7f619